There are Top 10 lists for just about everything. There are lists of the top 10 viral videos, the top 10 cryptozoology stories and the top 10 coolest robots. There are even lists of the top 10 lists. (How meta!) Rex Sorgatz, who has been creating lists of lists since 2001, says lists have become increasingly common — especially around this time of year. They’re catchy and easy to create, so it’s not surprising that news sites publish them. But why are they so popular among readers?